论文中提出了了一种适用于正交频分复用的基于离散余弦变换（DCT）变换导频辅助的信道估计法。这种方法可以减小基于离散傅里叶变换（DFT）的信道估计器中的混叠效应-Presented a paper suitable for orthogonal frequency division multiplexing based on discrete cosine transform (DCT) transform the pilot aided channel estimation. This method can reduce the discrete Fourier transform (DFT) of the channel estimator in aliasing effects